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<br /> <br />EXPLANATION <br /> <br />PERCENT <br /> <br />o leu than 5 <br /> <br /> <br />/'>15 to 15 <br /> <br />I'"C01i115 to 26 <br /> <br />26 to 60 <br /> <br />__ Greeter than 60 <br /> <br />Figure 6.--Percentage of county populations using self-supplied <br />domestic water. <br /> <br />study conducted by John Burt in California (John Burt, U.S. Geological Survey, <br />written commun., 1986), and (3) consumptive use was estimated to be 15 percent <br />of water used. <br /> <br />Little information has been published regarding industrial water use in <br />Colorado. One volume of a water-resources-study report of the South Platte <br />region (including parts of Wyoming and Nebraska) was devoted to industrial use <br />(U.S. Army Corps of Engineers, 1977, v. 5, appendix J, v. 4). It was esti- <br />mated that in 1975 about 105 million gallons of water per day was withdrawn <br />for industrial use and that 23 million gallons per day was consumptive use. <br />The withdrawal estimates included mining water use (12 million gallons per <br />day), sugar beet factories (19 million gallons per day), fish hatcheries (13 <br />million gallons per day), a brewery (22 million gallons per day), and manu- <br />facturing and other minor industries (23 million gallons per day). For the <br />present study, mining is considered a separate water use, and fish hatchery <br />water use is not estimated. Also, since 1975, the sugar beet industry has <br />declined (no sugar beet factories were in operation in 1985). Adjusting the <br />1975 data for these factors gives a withdrawal quantity of 62 million gallons <br />per day for industrial withdrawals compared with 58 million gallons per day <br /> <br /> <br />17 <br />